摘要
介绍用于中小型发电厂的一种双微机协同工作的自动准同期并网装置的设计方法。CPU1实现发电机组和电网电压信号间的压差、压差方向,频差、频差方向,相位差、相位差区间等的检测与判断。CPU2主要有参数设置,数据显示与上位监控计算机通信等功能。两CPU之间通过并行通信及握手信号交换信息。提出了一种改进的两点间隔采样法用于对相位差的计算。给出了装置的软件和硬件实现方法。
The design of automatic synchronization device based on the cooperation of double microprocessors for power plants is proposed. First microprocessor has the function of detecting frequency-difference, voltage-difference and phase-difference between generator voltage and power systems voltage. Second microprocessor has the function of setting parameters, displaying data and communicating with supervisory computer. Two microprocessors communicate each other by the way in parallel. A new method is taken to calculate phase-difference. The realization method of hardware and software is introduced.
出处
《电气应用》
北大核心
2005年第9期90-93,共4页
Electrotechnical Application
